private static void GuessPrimaryKey(EntityConfiguration ec, List <string> primaryKeys)
{
//check name = ID or GUID column first
foreach (PropertyConfiguration pc in ec.Properties)
{
if (pc.MappingName.ToUpper() == "ID" || pc.MappingName.ToUpper() == "GUID")
{
primaryKeys.Add(pc.MappingName);
return;
}
}
//check the first ends with ID or Guid column
foreach (PropertyConfiguration pc in ec.Properties)
{
if (pc.MappingName.ToUpper().EndsWith("ID") || pc.MappingName.ToUpper().EndsWith("GUID"))
{
primaryKeys.Add(pc.MappingName);
return;
}
}
//or threat the first column as DEFAULT_KEY column
primaryKeys.Add(ec.Properties[0].MappingName);
}
/// <summary>
/// Gets the modified properties of this entity, not including query properties and properties of base entity's.
/// </summary>
/// <param name="type">The type.</param>
/// <returns>The modified properties</returns>
public Dictionary <string, object> GetModifiedProperties(Type type)
{
EntityConfiguration ec = MetaDataManager.GetEntityConfiguration(type.ToString());
if (ec.BaseEntity == null && type == this.GetType())
{
return(changedProperties);
}
Check.Require(typeof(Entity).IsAssignableFrom(type), "type must be an Entity");
List <string> toRemoveItems = new List <string>();
foreach (string item in changedProperties.Keys)
{
PropertyConfiguration pc = ec.GetPropertyConfiguration(item);
if (pc == null || pc.IsInherited || pc.IsPrimaryKey)
{
toRemoveItems.Add(item);
}
}
Dictionary <string, object> retProperties = new Dictionary <string, object>();
foreach (string item in changedProperties.Keys)
{
if (!toRemoveItems.Contains(item))
{
retProperties.Add(item, changedProperties[item]);
}
}
return(retProperties);
}
/// <summary>
/// Gets the create property mapping column names.
/// </summary>
/// <param name="ec">The ec.</param>
/// <returns>Column names</returns>
public static string[] GetCreatePropertyMappingColumnNames(EntityConfiguration ec)
{
List <string> insertColumnNames = new List <string>();
foreach (PropertyConfiguration pc in ec.Properties)
{
if ((!(pc.IsReadOnly && ec.BaseEntity == null)) && ((!pc.IsQueryProperty) || (pc.QueryType == "FkReverseQuery")) && ((!pc.IsInherited) || pc.IsPrimaryKey))
{
insertColumnNames.Add(pc.MappingName);
}
}
return(insertColumnNames.ToArray());
}
/// <summary>
/// Gets the property mapping column names.
/// </summary>
/// <param name="ec">The ec.</param>
/// <returns>Column names</returns>
public static string[] GetPropertyMappingColumnNames(EntityConfiguration ec)
{
List <string> columnNames = new List <string>();
foreach (PropertyConfiguration pc in ec.Properties)
{
if ((!pc.IsQueryProperty) || (pc.QueryType == "FkReverseQuery"))
{
columnNames.Add(pc.MappingName);
}
}
return(columnNames.ToArray());
}
/// <summary>
/// Called when removed item from query property.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <param name="item">The item.</param>
protected void OnQueryPropertyItemRemove(string propertyName, object item)
{
Check.Require(item != null, "item to remove could not be null.");
bool isLoadedBefore = IsQueryPropertyLoaded(propertyName);
SetPropertyLoaded(propertyName);
if (!isLoadedBefore)
{
return;
}
EntityConfiguration ec = GetEntityConfiguration();
PropertyConfiguration pc = ec.GetPropertyConfiguration(propertyName);
if ((!(pc.IsContained || pc.QueryType == "ManyToManyQuery")))
{
return;
}
bool isInSaveList = false;
lock (toSaveRelatedPropertyObjects)
{
if (toSaveRelatedPropertyObjects.ContainsKey(propertyName) && toSaveRelatedPropertyObjects[propertyName].Contains(item))
{
toSaveRelatedPropertyObjects[propertyName].Remove(item);
isInSaveList = true;
}
}
if (!isInSaveList)
{
lock (toDeleteRelatedPropertyObjects)
{
if (!toDeleteRelatedPropertyObjects.ContainsKey(propertyName))
{
toDeleteRelatedPropertyObjects.Add(propertyName, new List <object>());
}
if (!toDeleteRelatedPropertyObjects[propertyName].Contains(item))
{
toDeleteRelatedPropertyObjects[propertyName].Add(item);
}
}
}
}
/// <summary>
/// Queries array of the specified return entity type.
/// </summary>
/// <param name="returnEntityType">Type of the return entity.</param>
/// <param name="propertyName">Name of the property.</param>
/// <param name="baseEntity">The base entity.</param>
/// <returns>The query result.</returns>
protected object Query(Type returnEntityType, string propertyName, Entity baseEntity)
{
if (onQuery != null)
{
EntityConfiguration ec = baseEntity.GetEntityConfiguration();
PropertyConfiguration pc = ec.GetPropertyConfiguration(propertyName);
try
{
return(onQuery(returnEntityType, propertyName, pc.QueryWhere, pc.QueryOrderBy, baseEntity));
}
catch
{
onQuery = null;
}
}
return(null);
}
/// <summary>
/// Gets the primary key mapping column names.
/// </summary>
/// <param name="ec">The ec.</param>
/// <returns></returns>
public static string[] GetPrimaryKeyMappingColumnNames(EntityConfiguration ec)
{
List <string> primaryKeys = new List <string>();
foreach (PropertyConfiguration pc in ec.Properties)
{
if (pc.IsPrimaryKey)
{
primaryKeys.Add(pc.MappingName);
}
}
if (primaryKeys.Count == 0)
{
//take the most possible column as a single primary DEFAULT_KEY
GuessPrimaryKey(ec, primaryKeys);
}
return(primaryKeys.ToArray());
}
/// <summary>
/// Called when query property changed.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <param name="oldValues">The old values.</param>
/// <param name="newValues">The new values.</param>
protected void OnQueryPropertyChanged(string propertyName, object oldValues, object newValues)
{
bool isLoadedBefore = IsQueryPropertyLoaded(propertyName);
SetPropertyLoaded(propertyName);
if (newValues != null)
{
BindArrayListEventHandlers(propertyName, newValues);
}
if (!isLoadedBefore)
{
return;
}
EntityConfiguration ec = GetEntityConfiguration();
PropertyConfiguration pc = ec.GetPropertyConfiguration(propertyName);
if ((!(pc.IsContained || pc.QueryType == "ManyToManyQuery")) || oldValues == newValues)
{
return;
}
if (oldValues != null)
{
//lock (toSaveRelatedPropertyObjects)
//{
// if (toSaveRelatedPropertyObjects.ContainsKey(propertyName))
// {
// foreach (object oldValue in (IEnumerable)oldValues)
// {
// if (toSaveRelatedPropertyObjects[propertyName].Contains(oldValue))
// {
// toSaveRelatedPropertyObjects[propertyName].Remove(oldValue);
// }
// }
// }
//}
//lock (toDeleteRelatedPropertyObjects)
//{
// if (!toDeleteRelatedPropertyObjects.ContainsKey(propertyName))
// {
// toDeleteRelatedPropertyObjects.Add(propertyName, new List<object>());
// }
// foreach (object oldValue in (IEnumerable)oldValues)
// {
// if (!toDeleteRelatedPropertyObjects[propertyName].Contains(oldValue))
// {
// toDeleteRelatedPropertyObjects[propertyName].Add(oldValue);
// }
// }
//}
foreach (object oldValue in (IEnumerable)oldValues)
{
OnQueryPropertyItemRemove(propertyName, oldValue);
}
}
if (newValues != null)
{
//lock (toDeleteRelatedPropertyObjects)
//{
// if (toDeleteRelatedPropertyObjects.ContainsKey(propertyName))
// {
// foreach (object newValue in (IEnumerable)newValues)
// {
// if (toDeleteRelatedPropertyObjects[propertyName].Contains(newValue))
// {
// toDeleteRelatedPropertyObjects[propertyName].Remove(newValue);
// }
// }
// }
//}
//lock (toSaveRelatedPropertyObjects)
//{
// if (!toSaveRelatedPropertyObjects.ContainsKey(propertyName))
// {
// toSaveRelatedPropertyObjects.Add(propertyName, new List<object>());
// }
// foreach (object newValue in (IEnumerable)newValues)
// {
// if (!toSaveRelatedPropertyObjects[propertyName].Contains(newValue))
// {
// toSaveRelatedPropertyObjects[propertyName].Add(newValue);
// }
// }
//}
foreach (object newValue in (IEnumerable)newValues)
{
OnQueryPropertyItemAdd(propertyName, newValue);
}
}
}
/// <summary>
/// Called when query one property changed.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <param name="oldValue">The old value.</param>
/// <param name="newValue">The new value.</param>
protected void OnQueryOnePropertyChanged(string propertyName, object oldValue, object newValue)
{
bool isLoadedBefore = IsQueryPropertyLoaded(propertyName);
SetPropertyLoaded(propertyName);
if (!isLoadedBefore)
{
return;
}
if (oldValue == newValue)
{
return;
}
EntityConfiguration ec = GetEntityConfiguration();
PropertyConfiguration pc = ec.GetPropertyConfiguration(propertyName);
if ((!(pc.IsContained || pc.QueryType == "ManyToManyQuery")))
{
return;
}
if (oldValue != null)
{
//lock (toSaveRelatedPropertyObjects)
//{
// if (toSaveRelatedPropertyObjects.ContainsKey(propertyName) && toSaveRelatedPropertyObjects[propertyName].Contains(oldValue))
// {
// toSaveRelatedPropertyObjects[propertyName].Remove(oldValue);
// }
//}
//lock (toDeleteRelatedPropertyObjects)
//{
// if (!toDeleteRelatedPropertyObjects.ContainsKey(propertyName))
// {
// toDeleteRelatedPropertyObjects.Add(propertyName, new List<object>());
// }
// if (!toDeleteRelatedPropertyObjects[propertyName].Contains(oldValue))
// {
// toDeleteRelatedPropertyObjects[propertyName].Add(oldValue);
// }
//}
OnQueryPropertyItemRemove(propertyName, oldValue);
}
if (newValue != null)
{
//lock (toDeleteRelatedPropertyObjects)
//{
// if (toDeleteRelatedPropertyObjects.ContainsKey(propertyName) && toDeleteRelatedPropertyObjects[propertyName].Contains(newValue))
// {
// toDeleteRelatedPropertyObjects[propertyName].Remove(newValue);
// }
//}
//lock (toSaveRelatedPropertyObjects)
//{
// if (!toSaveRelatedPropertyObjects.ContainsKey(propertyName))
// {
// toSaveRelatedPropertyObjects.Add(propertyName, new List<object>());
// }
// if (!toSaveRelatedPropertyObjects[propertyName].Contains(newValue))
// {
// toSaveRelatedPropertyObjects[propertyName].Add(newValue);
// }
//}
OnQueryPropertyItemAdd(propertyName, newValue);
}
}
